Crossing Kongma La, Cho La & Renjo La
The Three Passes trek is among the ultimate Everest challenges because it combines three high-altitude alpine crossings, above 5,000 m, and constant judgment calls that demand more than just fitness.
Kongma La (5,535 m)
Kongma La is the highest and most remote of the three passes. It connects the Chhukung valley to Lobuche, crossing rough moraine and boulder fields. This pass feels wild, with no lodges on it. You must carry everything you need for a long and challenging day.
Cho La (5,420 m)
Cho La links Dzongla and Gokyo. It is known for its steep approach and icy upper section. Cho La Pass involves basic technical skills, icy terrain, possible rockfall, and often frozen slopes. You need to pay attention to your footing and pick the right time to cross.
Renjo La (5,360 m)
Renjo La connects Gokyo with the Thame valley and offers stunning views of Everest, Lhotse, and the surrounding peaks. Although it is slightly lower and easier to navigate, it comes later in the trek when you may be tired, making it feel like a serious challenge.
What Makes It the Ultimate Everest Challenge?
The Everest Three Pass challenge is ultimate not just because of altitude. However, it involves layers of physical, mental, and logistical challenges you will face over many days. You will spend extended time above 4500 - 5,000 m, manage three distinct high passes with different risks, and often move through long, committing different sections without exit options. Success depends on aligning energy, weather, acclimatization, and route choices, requiring good judgment and self-awareness alongside strength and stamina.
What to Expect During the Everest Three High Passes Trek
You can expect the Everest Three High Passes Trek to feel more mentally and physically demanding than a standard EBC trek, especially on “normal” days above 4,500 m and during the second half of the circuit. So let’s get into some of the things you can expect during the Everest Three High Pass trek.
1. "Easy Days” Often Feel Harder Than "Pass" Days
You might think that the Pass days, when you cross three passes, are tougher; however, easy days are tougher in context. The long trekking duration between villages creates a slow, cumulative fatigue. Spending hours on similar moraine, hills, and glacial terrain in thin air, with a lowered appetite, can drain your energy, even when the trail seems easy.
2. Constant Small Route Decisions
The Three Passes hike requires more commitment and is less straightforward than the classic EBC route. You will need to make frequent small decisions about when to start, how to change your route, and whether to continue in bad weather. These choices accumulate over several days and can affect your safety, recovery, and your ability to reach passes safely.
3. Faster, Local Weather Shifts
All three passes you will reach are above 5,300 m, where wind, snow, and cloud can change within hours regardless of the weather forecasts. Clear mornings can turn into strong winds, drifting clouds, or snow flurries near the mountain passes. Expect colder and windier conditions on the way down in the afternoon.
4. Late Altitude-Sickness Symptoms
Even if you feel fine up to EBC or Gokyo, the symptoms of altitude sickness, such as headache, poor sleep, and loss of appetite, can appear or worsen at any time after multiple days above 5,000 m. The fatigue from long days can hide early warning signs of altitude sickness, making it easier to ignore until it becomes serious.
5. Mental Swings Outpace Physical Changes
The Three Passes trek is known for being very challenging due to its remoteness and long days. It's common to experience mood swings, such as irritability or sudden excitement at scenic spots, largely due to altitude and fatigue.
Everest Three High Passes Trek Failure Points: Where Most Turn Back and Why
The Everest Three High Pass trek is among the challenging treks in Nepal. Among all the sections, the portion of crossing the three passes themselves, especially around Kongma La and Cho La, where altitude, exposure, and terrain combine to overwhelm, acts as a turning point for less prepared trekkers. The second wave of turn points may occur earlier, around the Dingboche/Chhukung and Gokyo sections, when people decide not to commit to the full circuit after experiencing the reality of sustained days above 5,000 m.
Kongma La is often the first major hurdle, because it is the highest, longest, and most remote among the three passes. It doesn’t have teahouses, but it has rocky trails that feel extremely tough right after the classic EBC route. From there, many turned back due to early symptoms of altitude sickness and fear of being caught in the bad weather with no quick escape options.
Cho La (5,420 m) is a common "hard stop" after EBC due to its steep, icy access ramps and a crevassed glacier crossing, which challenge those lacking microspikes, balance, or experience on frozen terrain. Many trekkers turn back in Dzongla or Dragnag upon hearing of fresh snow or other hazards.
Renjo La (5,360 m) sees fewer failures as trekkers reaching Gokyo are usually well acclimatized. However, fatigue and weather can still lead some to turn back on the climb out of Gokyo valley. Common reasons for failure across all passes include rushed acclimatization, inflexible itineraries, underestimated physical demands, and inadequate gear for high-pass conditions.
Everest Three Pass Trek Weather Variation
On tough treks like the Everest Three High Pass trek, understanding the weather is extremely important. In these treks, conditions change depending on the season, altitude, and the specific pass you are crossing. This trek takes you through different altitudes, from forests to glaciers, and over high passes above 5,000 m. The weather can change quickly. Here are the general weather patterns you can expect throughout the year:
Low Altitudes (Lukla to Namche Bazaar):
- Winter (Dec-Feb): 23°F to 19°F
- Summer (Mar-May): 45°F to 32°F
- Autumn (Sept-Nov): 50°F to 41°F
- Spring (Mar–May): 32°F to 50°F
Mid Altitudes (Dingboche to Chhukung and Gokyo):
- Winter (Dec-Feb): 10°F to 24°F
- Summer (Mar-May): 40°F to 32°F
- Autumn (Sept-Nov): 48°F to 34°F
- Spring (Mar–May): 32°F to 45°F
High Altitudes (Kongma La, Cho La, and Renjo La Passes):
- Winter (Dec-Feb): -10°F to 10°F
- Summer (Mar-May): 20°F to 28°F
- Autumn (Sept-Nov): 15°F to 5°F
- Spring (Mar–May): 14°F to 28°F
Best Seasons for trek to Everest Three Passes Trek
The best time to cross the three high passes of the Everest region is during the spring and autumn seasons. These two seasons attract hundreds of travelers to the region due to stable weather and a mild climate.
Spring (March to May):
Spring has mild and stable weather, which is important for spending several days above 5,000 m on open passes. Clear skies and good visibility make for safer high crossings. Lower areas are blanketed in rhododendron forests, adding to the scenic beauty of the high valleys.
Autumn (September to November):
Autumn is the best time for high-altitude treks in the Everest region. The monsoon season has cleared dust and haze, providing clear mountain views. The trails are dry, the temperatures are cool but comfortable, and the weather is usually stable. This makes it a great time to hike all three passes and increases the chances of completing the full circuit safely and comfortably.
How’s the Accommodation and Food During The Three Passes Differ From The Classic EBC Trek?
Accommodation and food on both treks are somewhat similar since they are in the same Everest region. For accommodation, on both treks you sleep mainly in lodges at lower altitudes, such as Lukla, Phakding, and Namche, and in teahouses or homestays at higher altitudes, such as Tengboche, Dingboche, Thaknak, Chhukung, and Lobuche. The classic EBC route is more modern, with slightly better rooms and consistent access to electricity and Wi-Fi. Initially, the Three Pass trek follows the same route, but later branches into remote valleys with small teahouses featuring shared, unheated rooms and simpler common areas.
Food is similar on both the EBC trail and the Three Passes trek. You can find dal bhat, soups, noodles, rice, potatoes, pasta, momos, and basic Western foods like pizza and pancakes. However, the EBC trail has larger menus, more fresh items, and extras like bakeries and coffee shops in busy places like Namche and Dingboche. On the Three Passes, you will still get hot, high-carb meals, but the choices are limited in the high, isolated areas. The food relies more on long-lasting products, and both food and drinking water generally cost more than on the EBC trail, as everything has to be carried in from farther away.
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